Brazed PCBN Cutting Inserts Finishing Interrupt Grey Cast Iron Brake Disc

Brazed PCBN Cutting Inserts Finishing Interrupt Grey Cast Iron Brake Disc

1. Brake disc basic information.

As the main component of the car, the brake disc is a powerful guarantee for safe driving. With the continuous updating of the automotive industry, higher requirements are placed on the tools for machining brake discs.

As the main components on the car, the brake disc itself has high dimensional tolerance requirements and precision requirements: if the tolerance of the two brake surfaces is within 0.009 mm, the surface roughness reaches Ra1.6, the parallelism requirement is within 0.04 mm, and the beating requirements within 0.025mm. At this time, the BNK30 grade CBN insert is used to process the brake disc, which not only improves production efficiency, but also ensures high surface quality.

2. Advantages of BNK30 grade CBN inserts processing brake disc.

(1) BNK30 grades have high hardness and good wear resistance, which is 15 times to 20 times that of cemented carbide tools.

(2) Can withstand high-speed cutting, the highest line speed can reach 2000m / min, improve production efficiency

(3) The CBN tool adopts the method of dry cutting. It does not add cutting fluid, and the chip is easy to be recycled, which is more in line with “green manufacturing”.

3. Cutting parameters for BNK30 graded brake discs.

Machining workpiece

Cutting speed

 Vc（m/min）

Cutting depth

Ap (mm)

Feed rate

Fr（mm/r）

CBN inserts grade

brake disc

200-700

(Roughing)

1-10

0.2-1

BNK30

300-2000

(Finishing)

≤1

0.05-0.3

BNK30

4. Pictures

5. Our service

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   l) Every batch of products will be tested to ensure its quality.

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